%0 Journal Article
%T Pd-Functionalized SnO2 Nanofibers Prepared by Shaddock Peels as Bio-Templates for High Gas Sensing Performance toward Butane
%A Ping Hong
%A Rongjun Zhao
%A Sijia Peng
%A Tong Zou
%A Xinxin Xing
%A Yude Wang
%A Yue Yang
%A Zhezhe Wang
%A Zidong Wang
%J Archive of "Nanomaterials".
%D 2019
%R 10.3390/nano9010013
%X Pd-functionalized one-dimensional (1D) SnO2 nanostructures were synthesized via a facile hydrothermal method and shaddock peels were used as bio-templates to induce a 1D-fiber-like morphology into the gas sensing materials. The gas-sensing performances of sensors based on different ratios of Pd-functionalized SnO2 composites were measured. All results indicate that the sensor based on 5 mol % Pd-functionalized SnO2 composites exhibited significantly enhanced gas-sensing performances toward butane. With regard to pure SnO2, enhanced levels of gas response and selectivity were observed. With 5 mol % Pd-functionalized SnO2 composites, detection limits as low as 10 ppm with responses of 1.38 ”Ą 0.26 were attained. Additionally, the sensor exhibited rapid response/recovery times (3.20/6.28 s) at 3000 ppm butane, good repeatability and long-term stability, demonstrating their potential in practical applications. The excellent gas-sensing performances are attributed to the unique one-dimensional morphology and the large internal surface area of sensing materials afforded using bio-templates, which provide more active sites for the reaction between butane molecules and adsorbed oxygen ions. The catalysis and ”°spillover effect”± of Pd nanoparticles also play an important role in the sensing of butane gas as further discussed in the paper
%K bio-template
%K Pd-functionalized SnO2 nanofibers
%K gas sensor
%K butane
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359564/